<template>
  <div class="my_div">
    <img
      src="https://scpic.chinaz.net/files/pic/pic9/202003/zzpic23514.jpg"
      alt=""
    />
    <p :style="{ backgroundColor: color }" @click="btn">这是一个孤独可怜的狗</p>
  </div>
</template>

<script>
export default {
  data() {
    return {
      color: "",
    };
  },
  methods: {
    btn() {
      const r = Math.floor(Math.random() * 256);
      const g = Math.floor(Math.random() * 256);
      const b = Math.floor(Math.random() * 256);
      this.color = `rgb(${r},${g},${b})`;
    },
  },
};
</script>

<style>
.my_div {
  width: 200px;
  border: 1px solid black;
  text-align: center;
  float: left;
}

.my_div img {
  width: 100%;
  height: 200px;
}
</style>